JPH06210527A - Small diameter wire inserting device - Google Patents

Abstract

PURPOSE:To provide an inserting device which is capable of coping with bend of a small diameter lead wire or position deflection of a small diameter hole which becomes a problem in inserting a small diameter wire such as the lead wire, for example, into a counter work having the small diameter hole. CONSTITUTION:An insertion device 20 for a small diameter wire 1 is composed of a negative pressure suction tube line 11 having a suction pad 10 opening in a facing surface with a small diameter hole 3A, and a negative pressure generating device 20 connected in the upstream of the negative pressure suction tube line 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-diameter wire rod insertion device, and more specifically, for guiding and fitting a small-diameter wire rod such as a lead wire into a small-diameter hole provided in a workpiece to be inserted. The present invention relates to a fluid utilization type wire rod insertion device.

[0002]

2. Description of the Related Art In the process of manufacturing a small electronic component, when a wire having a small diameter, for example, a lead wire is inserted into a small diameter hole provided in a workpiece to be inserted, a mechanical guide means as shown in FIG. 2 is provided. A wire insertion device was used.

More specifically, a wire, for example, a lead wire (1) having a head is gripped by a chuck (2) of a work robot and moved to a position above a work (3) to be inserted, and the work (3) to be inserted is inserted. ) Is held in a fixed position, and the relative position between the chuck (2) and the station (4) is adjusted so that the shaft center of the lead wire (1) and the bottom surface of the work piece (3) to be inserted are pierced. After aligning the center of the small hole (3A) provided, release the lead wire (1) from the chuck (2), and fit the lead wire (1) into the small hole (3A) by the self-weight drop method. It is crowded. In an actual device, as a means for correcting the relative position, it is formed into a cylindrical shape with a bottom so that the insertion operation can be performed smoothly even if the axial center of the lead wire (1) and the center of the small diameter hole (3A) are slightly misaligned. Inserted Workpiece (3)
A funnel-shaped guide member (5) whose diameter gradually decreases from the upper side to the lower side is arranged therein.

[0004]

Although it is true that the use of the guide member (5) facilitates the insertion of the lead wire (1), as a practical matter, the lead wire (1) is actually used.
There may be bending or burrs on the insert side work piece (3) even at the drilling position (3A ') of the small diameter hole (3A) as shown in FIG. It is often the case that each one is slightly different. For this reason, the relative position between the lead wire (1) and the small diameter hole (3A) of the workpiece (3) to be inserted may be misaligned and the mutual accessibility may be impaired. As a result, the lead wire (1) and the work piece (3) to be inserted have quality defects such as bending and scratches due to the excessive insertion, which causes a decrease in yield.

[0005]

As a means for solving the above-mentioned problems, the present invention provides a device for inserting a small-diameter wire into a small-diameter hole formed in a workpiece to be inserted by using a suction pad on a surface facing the small-diameter hole. The present invention provides a small-diameter wire rod insertion device comprising a negative pressure suction pipe line having an opening formed therein and a negative pressure generation device connected to the upstream side of the negative pressure suction pipe line.

[0006]

Operation: The opening surface of the suction pad is brought into close contact with the surface facing the small diameter hole formed in the workpiece to be inserted, and the negative pressure suction flow from the negative pressure generator is used to make a small diameter wire, for example, with a head. The small diameter lead wire is sucked and automatically inserted into the small diameter hole.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments and application examples of the present invention will be described below with reference to FIG. In the following description, the same components as those of FIG. 2 showing the prior art are denoted by the same reference numerals, and the description of the overlapping matters will be omitted.

First, in FIGS. 1 (A) and 1 (B), an insertion device (20) for a small diameter wire (lead wire) (1) is formed on the bottom surface of a work piece (3) having a cylindrical shape with a bottom. A negative pressure suction conduit (11) having a suction pad (10) opened on the surface facing the small diameter hole (3A) provided, and this negative pressure suction conduit (11)
It is configured by combining a negative pressure generating device, such as a vacuum pump (12), which is connected to the upstream side of.

The operation sequence of the insertion device (20) for the small diameter wire (1) will be described. By lowering the chuck (2) of the work robot, the lead wire (1) gripped by the chuck (2) is removed. The insertion device (20) and the work (3) to be inserted are moved to above the upper end openings, and at the same time, the suction pad (10) and the negative pressure suction pipe line (11) are connected to the dual rod. Cylinder device (1
Using the lifting stroke of 3), the suction pad (10) is lifted to a position where the opening surface of the suction pad (10) comes into close contact with the bottom surface of the work (3) to be inserted. At this time, the inside of the negative pressure suction pipeline (11)
The vacuum pump (12) is started to keep a negative pressure in advance. When the lifting movement of the suction pad (10) is completed, the chuck (2) is opened, and the lead wire (1) is dropped by its own weight into the inserted work (3). At this time, the small-diameter hole (3A) communicates with the negative pressure suction conduit (11) through the suction pad (10) in the work piece (3) to be inserted, which has a bottomed cylindrical shape, as shown in FIG. The suction airflow (S) is generated as shown in FIG. Therefore, the lead wire (1) released from the chuck (2) falls by its own weight under the accompanying suction air flow (S), and the small diameter hole (3A) is aligned with the axis center of the small diameter hole (3A). 3A) fit in. When the above-mentioned inserting operation for one lead wire (1) is completed, the suction pad (10) and the negative pressure suction pipe line (11) are set in a predetermined state in preparation for the delivery of the integrated works (1) and (3). The chuck (2) is lowered to the delivery position, and the chuck (2) is raised to the original position in preparation for receiving the next lead wire (1). As a result, one cycle of inserting the lead wire (1) is completed.

In the above embodiment, the inserted work (3) has a bottomed cylindrical shape, and a small diameter hole (3A) functioning as a passage for the suction airflow (S) is formed in the bottom surface thereof. Is explained. However, the present invention should not be construed to limit the scope of rights by this embodiment, and many application examples can be carried out as long as a suction flow by a fluid is used. For example, in FIG. 1 (C),
FIG. 1 (A) is a view for explaining an application example of the present invention, in which the inserted work (3) is made of a flat disc.
In consideration of the absence of the upright cylindrical vessel wall portion shown in (B), for the purpose of facilitating the transmission of the suction flow to the lead wire (1), for fluid guide around the plate-shaped work (1) The cylindrical body (14) is erected to facilitate the generation of the suction air flow (S).

As the fluid that can be used as the medium for generating the suction flow, there are gases such as air and inert gas, and liquids such as pure water.

In the above embodiment, the vertical insertion device (2) in which the moving direction of the lead wire (1) is substantially vertical.
0) is described, but by slightly changing the delivery mechanism of the lead wire (1), it can be used as a horizontal insertion device in which the moving direction of the lead wire (1) is directed in the horizontal direction. It is possible.

[0013]

According to the present invention, even when the lead wire (1) is bent or burrs, or the position of the small diameter hole (3A) of the workpiece (3) to be inserted is incorrect. A smooth insertion operation is ensured by causing the lead wire (1) to accompany the suction flow. Therefore, a remarkable effect is exerted in preventing the deterioration of the quality due to the excessive insertion.

[Brief description of drawings]

FIG. 1A is an explanatory view of the overall structure of the device of the present invention,
(B) is a vertical cross-sectional view of the main part of the insertion device, and (C) is a vertical cross-sectional view of the main part showing an application example of the device of the present invention.

2A is a longitudinal sectional view of a conventional device, FIG. 2B is a lateral sectional view taken along line bb in FIG. 2A, and FIG.
3 is a cross-sectional view taken along line cc of FIG.

[Explanation of symbols]

 1 Small diameter wire (small diameter lead wire) 3 Workpiece to be inserted 3A Small diameter hole 10 Suction pad 11 Negative pressure suction pipe line 12 Negative pressure generator (vacuum pump) 14 Cylindrical body for fluid guide 20 Insertion device S Suction flow (suction) air flow)

Claims (3)

[Claims] 1. A device for inserting a small-diameter wire into a small-diameter hole formed in a workpiece to be inserted, a negative-pressure suction pipe line in which a suction pad is opened on a surface facing the small-diameter hole, and the negative pressure A device for inserting a small-diameter wire rod, which is configured by a negative pressure generating device connected to an upstream side of a suction pipe line. 2. A device for inserting a small-diameter wire into a small-diameter hole formed in a plate-like work, wherein a fluid guide cylinder provided upright around the plate-like work and the small-diameter hole are opposed to each other. A device for inserting a small-diameter wire, comprising a negative pressure suction pipe line having a suction pad opened on its surface, and a negative pressure generation device connected to the upstream side of the negative pressure suction pipe line. 3. An insertion device for a small-diameter wire rod, wherein a carrier medium for the small-diameter wire rod that flows in the negative pressure generator and the negative pressure suction pipe line with a suction pad is an air flow.